{"id":30002,"date":"2024-10-17T03:25:02","date_gmt":"2024-10-17T03:25:02","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/nfpa-91\/"},"modified":"2024-10-24T14:16:38","modified_gmt":"2024-10-24T14:16:38","slug":"nfpa-91","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/nfpa\/nfpa-91\/","title":{"rendered":"NFPA 91"},"content":{"rendered":"<p><strong>Follow the 2010 <em>NFPA 91<\/em> to prevent exhaust systems from spreading fire and increasing explosion risks.<\/strong><\/p>\n<p><em>NFPA 91: Standard for Exhaust Systems for Air Conveying of Vapors, Gases, Mists, and Noncombustible Particulate Solids<\/em> provides minimum requirements for the design, construction, installation, operation, testing, and maintenance of these systems except as modified or amplified by other applicable NFPA\u00ae standards.<\/p>\n<p><strong>Key changes in the 2010 Standard include:<\/strong><\/p>\n<ul>\n<li>Updated definitions for consistency with other particulate solids documents, such as <em>NFPA 654: Standard for the Prevention of Fire and Dust Explosions from the Manufacturing, Processing, and Handling of Combustible Particular Solids<\/em><\/li>\n<li>Amended scope and application clarify that the provisions are intended to provide protection against fire and explosion hazards.<\/li>\n<li>Revised requirements pertaining to access to ducts for purposes of inspection provide a more performance oriented approach.<\/li>\n<li>New chapter on air-material separators based on provisions in <em>NFPA 654<\/em><\/li>\n<li>Modified testing and maintenance rules require that provisions be applicable retroactively. This is consistent with the other particulate solids documents, such as <em>NFPA 654.<\/em><\/li>\n<li>Revised requirements for duct clearances from combustible construction include more comprehensive criteria for various installations of duct systems.<\/li>\n<\/ul>\n<p>The 2010<\/p>\n<p><em>NFPA 91<\/em><\/p>\n<p>is essential for process industries in which there is production or release of gases, vapors, or solids that are pneumatically conveyed through duct systems; design engineers; fire protection engineers; safety and health professionals; industrial hygienists; and fire and building officials<\/p>\n<h4>PDF Catalog<\/h4>\n<table border=\"1px\" class=\"des-table\">\n<tr>\n<th>PDF Pages<\/th>\n<th>PDF Title<\/th>\n<\/tr>\n<tr>\n<td><b>2<b><\/td>\n<td>Important Notices and Disclaimers  <\/td>\n<\/tr>\n<tr>\n<td><b>3<b><\/td>\n<td>Additional Notices and Disclaimers  <\/td>\n<\/tr>\n<tr>\n<td><b>4<b><\/td>\n<td>2.1 General <br \/> 2.2 NFPA Publications  <\/td>\n<\/tr>\n<tr>\n<td><b>8<b><\/td>\n<td>Chapter 1 Administration <br \/> 1.1 Scope <br \/> 1.2 Purpose <br \/> 1.3 Retroactivity <br \/> 1.4 Equivalency <br \/> Chapter 2 Referenced Publications <br \/> 2.3 Other Publications  <\/td>\n<\/tr>\n<tr>\n<td><b>9<b><\/td>\n<td>2.4 References for Extracts in Mandatory Sections <br \/> Chapter 3 Definitions <br \/> 3.1 General <br \/> 3.2 NFPA Official Definitions <br \/> 3.3 General Definitions <br \/> Chapter 4 Design and Construction <br \/> 4.1 General Requirements  <\/td>\n<\/tr>\n<tr>\n<td><b>10<b><\/td>\n<td>4.2 Duct Material and Construction  <\/td>\n<\/tr>\n<tr>\n<td><b>11<b><\/td>\n<td>4.3 Access <br \/> 4.4 Design Requirements <br \/> 4.5 Hangers and Supports <br \/> 4.6 Duct Installation  <\/td>\n<\/tr>\n<tr>\n<td><b>13<b><\/td>\n<td>Chapter 5 Corrosive Materials <br \/> 5.1 General <br \/> Chapter 6 Air-Moving Devices <br \/> 6.1 General <br \/> 6.2 Flammable or Combustible Materials <br \/> 6.3 Clearance <br \/> 6.4 Alignment  <\/td>\n<\/tr>\n<tr>\n<td><b>14<b><\/td>\n<td>6.5 Maintenance and Inspection <br \/> 6.6 Location <br \/> 6.7 Flexible Connections <br \/> Chapter 7 Air\u2013Material Separators (Air Separation Devices) <br \/> 7.1 General Requirements <br \/> 7.2 Separators for Noncombustible Particulates <br \/> 7.3 Separators for Flammable Gases, Vapors, and Mists <br \/> Chapter 8 Ignition Sources <br \/> 8.1 Electrical Equipment <br \/> 8.2 Static Electricity <br \/> 8.3 Manifolds  <\/td>\n<\/tr>\n<tr>\n<td><b>15<b><\/td>\n<td>8.4 Open Flames and Sparks <br \/> 8.5 Removal of Ferrous Materials <br \/> 8.6 Belt Drives <br \/> 8.7 Bearings <br \/> 8.8 Equipment <br \/> Chapter 9 Fire Protection <br \/> 9.1 General <br \/> 9.2 Drainage <br \/> 9.3 Testing and Inspection <br \/> Chapter 10 Testing and Maintenance <br \/> 10.1 Retroactivity <br \/> 10.2 General <br \/> 10.3 System Test <br \/> 10.4 System Inspection.  <\/td>\n<\/tr>\n<tr>\n<td><b>16<b><\/td>\n<td>10.5 Cleanliness <br \/> 10.6 Maintenance Program <br \/> 10.7 Maintenance Log <br \/> Annex A Explanatory Material  <\/td>\n<\/tr>\n<tr>\n<td><b>19<b><\/td>\n<td>Annex B Informational References  <\/td>\n<\/tr>\n<tr>\n<td><b>21<b><\/td>\n<td>Index  <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p><b> Standard for Exhaust Systems for Air Conveying of Vapors, Gases, Mists, and Noncombustible Particulate Solids<\/b><\/p>\n<table class=\"shortdes-table\" style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/nfpa\/\"><b>NFPA<\/b><\/a><\/td>\n<td>2010<\/td>\n<td>24<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":30003,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2638],"product_tag":[],"class_list":{"0":"post-30002","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-nfpa","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/30002","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/30003"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=30002"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=30002"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=30002"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}